Nokea
Which of the following hormones is secreted by corpus albicans?
- A. Estrogen
- B. Progesterone
- C. Luteinizing hormone
- D. No hormones are secreted by the corpus albicans
Correct Answer: D
Rationale: The correct answer is D because the corpus albicans is the end stage of the corpus luteum, which degenerates if fertilization does not occur. As a result, it no longer secretes hormones. Estrogen and progesterone are secreted by the corpus luteum, not the corpus albicans. Luteinizing hormone is produced by the anterior pituitary gland, not by the corpus albicans.
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When the nurse is performing a genital examination on a male patient, the patient has an erection. The nurse’s most appropriate action or response is to:
- A. Ask the patient if he would like someone else to examine him.
- B. Continue with the examination as though nothing has happened.
- C. Stop the examination, leave the room while stating that the examination will resume at a later time.
- D. Reassure the patient that this is a normal response and continue with the examination.
Correct Answer: D
Rationale: The correct answer is D. This is the most appropriate action because it acknowledges the patient's normal physiological response and reassures him. It helps maintain professionalism and respect for the patient's dignity. Choice A could potentially embarrass the patient further. Choice B may ignore the patient's discomfort. Choice C abruptly halts the examination without addressing the situation. Overall, choice D is the most respectful and professional response in this scenario.
Thiazide diuretics may produce an increase in blood levels of uric acid and: *
- A. Potassium
- B. BUN
- C. Urea
- D. Glucose
Correct Answer: A
Rationale: Thiazide diuretics decrease urinary excretion of uric acid, leading to increased blood levels. Thiazides also increase potassium reabsorption, potentially causing hyperkalemia. However, the main effect on uric acid levels makes choice A correct. Choices B, C, and D are incorrect as thiazides do not directly impact BUN, urea, or glucose levels.
Imipenem has the broadest spectrum of activity currently available to beta-lactams. This include antimicrobial activity against the following organisms EXCEPT:
- A. Staphylococcus aureus
- B. Staphylococcus epidermidis
- C. Pseudomonas aeruginosa
- D. Mycoplasma pneumoniae
Correct Answer: D
Rationale: The correct answer is D: Mycoplasma pneumoniae. Imipenem, a carbapenem antibiotic, has broad-spectrum activity against Gram-positive, Gram-negative, anaerobic, and some atypical bacteria. Mycoplasma pneumoniae is an atypical bacteria lacking a cell wall, making it resistant to beta-lactam antibiotics like imipenem. Staphylococcus aureus, Staphylococcus epidermidis, and Pseudomonas aeruginosa are all susceptible to imipenem due to their cell wall composition.
Tubular reabsorption
- A. eliminates wastes from the body
- B. occurs mostly in the distal convoluted tubule
- C. usually helps control blood pH by removing H+ from the filtrate
- D. returns 99% of the water filtered from the glomerulus to the blood
Correct Answer: D
Rationale: The correct answer is D because tubular reabsorption refers to the process of reabsorbing substances, including water, from the renal tubules back into the bloodstream. This process occurs mainly in the proximal convoluted tubule and loop of Henle, not the distal convoluted tubule as stated in choice B. Choice A is incorrect because tubular reabsorption does not specifically eliminate wastes; that is the role of tubular secretion. Choice C is incorrect because tubular reabsorption does not directly control blood pH by removing H+ ions from the filtrate; that is primarily done through the kidneys' buffering systems. Overall, choice D is the most accurate as it reflects the primary function of tubular reabsorption in returning water back to the blood.
A 32-year-old woman presents with vaginal bleeding and lower abdominal pain. The nurse suspects an ectopic pregnancy. Which of the following is the most common risk factor for ectopic pregnancy?
- A. Previous pelvic surgery.
- B. Endometriosis.
- C. Tubal ligation.
- D. Pelvic inflammatory disease.
Correct Answer: D
Rationale: The correct answer is D: Pelvic inflammatory disease (PID). PID can lead to scarring and narrowing of the fallopian tubes, increasing the risk of ectopic pregnancy. This is because the fertilized egg may get stuck in the narrowed tube, leading to an ectopic pregnancy.
A: Previous pelvic surgery is a risk factor, but it is not the most common one for ectopic pregnancy.
B: Endometriosis can also affect fallopian tubes but is not the most common risk factor for ectopic pregnancy.
C: Tubal ligation is a form of contraception that reduces the risk of pregnancy but does not increase the risk of ectopic pregnancy.
In summary, PID is the most common risk factor for ectopic pregnancy due to its potential to cause fallopian tube scarring and narrowing, leading to the implantation of the fertilized egg outside the uterus.